body{
    background-color: white;
    text-align: center;  
}

#webseite{
    width:900px;
    margin:0 auto;
    
}

#header{
    width:900px;
    height:180px;
    background-color: skyblue;
    border-radius: 10px;
  
}

#header h1{
    padding-top:25px;
    font-size: 45px;
    font-weight: bold;
    color: whitesmoke;
    font-family: Comic Sans MS;
    
}

#header h2 {
    padding-bottom: 25px;
    font-size: 25px;
    font-weight: bold;
    color: whitesmoke;
    font-family: Comic Sans MS;
}

#main {
    width: 980px;
    font-family: Comic Sans MS;
    font-size: 15px;
}

#menu {
    float: left;
    width: 200px;
    height: 300px;
    background-color: white;
    margin-top: 50px;
    margin-bottom: 10px;
    border-radius: 10px;
    list-style: none;
    
}
#menu img {
    max-width: 50px;
    padding-top: 0.2em;
}

ul {
    width: 100%;
    background: white;
    margin: 0;
    padding: 0;
    text-align: center;
}

ul li {
    display: inline-block;
    margin: 0;
    padding: 0;
    font-size: 16px;
    font-weight: bold;
    color: black;
    font-family: Comic Sans MS;
}

ul li a {
    position: relative;
    display: block;
    padding: 25px, 25px, 25px, 25px;
    color: black;
    text-decoration: none;
}

#hauptfenster {
    float: right;
    width: 690px;
    height: 300px;
    background-color: white;
    margin-top: 50px;
    margin-bottom: 10px;
    border-radius: 10px;
    font-family: Comic Sans MS;
    font-size: 35px;
    font-weight: bold;
    color: black;
}

#footer {
    width: 900px;
    height: 50px;
    background-color: skyblue;
    border-radius: 10px;
    clear: both;
}
#footer h3 {
    text-align: left;
    padding-left: 1em;
    padding-top: 1.0em;
    font-weight: bold;
    font-size: 14px;
    color: whitesmoke;
    font-family: Comic Sans MS;
}